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2030422021 = 18691108631
BaseRepresentation
bin111100100000101…
…1100100000000101
312020111121010101121
41321001130200011
513124242001041
6533250553541
7101213205505
oct17101344005
95214533347
102030422021
11952136131
12487b988b1
13264869464
14153937a05
15bd3c17d1
hex7905c805

2030422021 has 4 divisors (see below), whose sum is σ = 2030549344. Its totient is φ = 2030294700.

The previous prime is 2030422019. The next prime is 2030422039. The reversal of 2030422021 is 1202240302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2030422021 - 21 = 2030422019 is a prime.

It is a super-2 number, since 2×20304220212 = 8245227166723448882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2030421986 and 2030422004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030422001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35625 + ... + 73006.

It is an arithmetic number, because the mean of its divisors is an integer number (507637336).

Almost surely, 22030422021 is an apocalyptic number.

It is an amenable number.

2030422021 is a deficient number, since it is larger than the sum of its proper divisors (127323).

2030422021 is a wasteful number, since it uses less digits than its factorization.

2030422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127322.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2030422021 is about 45060.2044047738. The cubic root of 2030422021 is about 1266.2771545257.

Adding to 2030422021 its reverse (1202240302), we get a palindrome (3232662323).

The spelling of 2030422021 in words is "two billion, thirty million, four hundred twenty-two thousand, twenty-one".

Divisors: 1 18691 108631 2030422021